Battery and method of manufacturing thereof

Abstract

A method of manufacturing a battery, comprising, a joining step of joining together superposed peripheral edge portions of an exterior body that accommodates an electrode body at an interior thereof, and nipping and welding one end portion of a resin hollow member between the peripheral edge portions; and a supplying step of supplying an electrolytic solution into the interior of the exterior body from a supply path of the hollow member.

What is claimed is: 
     
         1 . A battery comprising:
 an exterior body that accommodates an electrode body at an interior of the exterior body, and at which superposed peripheral edge portions are joined together; and   a resin hollow member having a supply path for supplying an electrolytic solution into the interior of the exterior body, and nipped between the superposed peripheral edge portions of the exterior body, and welded to the peripheral edge portions.   
     
     
         2 . The battery of  claim 1 , wherein a melting point of a resin material configuring the hollow member is higher than a melting point of the peripheral edge portions. 
     
     
         3 . A method of manufacturing a battery, comprising:
 joining together superposed peripheral edge portions of an exterior body that accommodates an electrode body at an interior of the exterior body, and nipping and welding one end portion of a hollow member between the peripheral edge portions; and   supplying an electrolytic solution into the interior of the exterior body from a supply path of the hollow member.   
     
     
         4 . The method of manufacturing a battery of  claim 3 , wherein the hollow member is welded between the peripheral edge portions in a state in which a rod-shaped member is inserted through the supply path that includes the one end portion, and, after welding, the rod-shaped member is pulled out. 
     
     
         5 . The method of manufacturing a battery of  claim 4 , comprising, after pulling the rod-shaped member out, reducing pressure of the interior of the exterior body. 
     
     
         6 . The method of manufacturing a battery of  claim 3 , comprising:
 after supplying the electrolytic solution into the interior of the exterior body, cutting the hollow member that is projecting out from the peripheral edge portions; and   crushing and welding the one end portion of the hollow member that is nipped and remains between the peripheral edge portions, and sealing the exterior body.   
     
     
         7 . The method of manufacturing a battery of  claim 4 , comprising:
 after supplying the electrolytic solution into the interior of the exterior body, cutting the hollow member that is projecting out from the peripheral edge portions; and   crushing and welding the one end portion of the hollow member that is nipped and remains between the peripheral edge portions, and sealing the exterior body.   
     
     
         8 . The method of manufacturing a battery of  claim 5 , comprising:
 after supplying the electrolytic solution into the interior of the exterior body, cutting the hollow member that is projecting out from the peripheral edge portions; and   crushing and welding the one end portion of the hollow member that is nipped and remains between the peripheral edge portions, and sealing the exterior body.